56 en | Appendix: Technical Specifications RAID Subsystem DVA-08K | Installation Manual
F.01U.027.797 | V2 | 2008.08 Bosch Security Systems
7.1 Controller Specifications
7.1.1 Configuration
7.1.2 Architecture
Specifications
RAID Levels 0, 1(0 + 1), 3, 5, 10, 30, 50, JBOD, and non-RAID disk spanning
Host OS Compatibil-
ity
Host OS independent; supports all major platforms
Host Interface 2 SCSI-320 channels via 2 dual-stacked VHDCI connectors
Host Channels 2 pre-configured SCSI-320 host channels
Drive Interface Supports 8 channel connection to 3Gbps SATA-II disk drives,
SATA-I backward compatible
Drive Channels All drive channels are pre-configured, routed through a back-end
PCB and cannot be changed
Caching Mode Write-through or Write-back
Cache Memory Pre-installed 256MB (or above) DDR RAM DIMM with/without
ECC, in one DIMM socket
Number of LUN’s Up to 32 per host ID
Multiple Target IDs/
Host Channel
Yes
Firmware on Flash
Memory
Yes
Specifications
CPU IBM PowerPC 750CXr
Gigabit Ethernet One 10/100BasedT for local or remote management access
DIMM Slot One 184-pin DDR DIMM module
ASIC 64-bit chipset (ASIC266)
Flash ROM 32Mbit (4MB)
NVRAM 32KB with RTC
Hardware XOR Yes
Real-time Clock For event messages with time record tracking and scheduled
maintenance tasks, e.g., Media Scan.
